Automatic electrical cut-out device.



PATENTED MAY '7,- 1907.

R. BREBAGH.

AUTOMATIC ELECTRICAL GUT-OUT DEVICE.

APPLICATION FILED JULY 21. 1904.

we :vcmms PETERS cm, WASHINGTON. o. c.

RUDOLF BREBAOH, OF LEIPZIG-REUDNITZ, GERMANY.

AUTOMATIC ELECTRICAL CUT-OUT DEVICE.

Specification of Letters Patent.

Patented May '7, 1907.

Application filed uly 21,1904. Serial No. 217,582.

To all whmn it may concern:

Be it known that I, RUDoLr BREBACH, a subject of the King of Saxony, and residing at No. 10 Kohlgartenstrasse, in the city of Leipzig-Reudnitz, in the Kingdom of Saxony, German Empire, have invented a certain new and Improved Automatic Electrical Cut-Out Device, ol which the following is a specification.

This invention relates to an automatic electrical cut-out device, and my improvements in the same relate to certain combinations and arrangements of parts as are fully described hereinafter.

My invention is shown in plan, in diagrammatical representation, in the accompanying drawing.

In this figure, A is the base-plate of a junction box which has binding posts or screws for feedor other wires. The box contains a plate upon which are mounted means for automatically interrupting and re establishing the circuit.

5 and 6 are the before-mentioned bindingposts. They are connected with the linewires, by which the current is conducted to, and away from, the cut-out device. The electromotor or other electrical apparatus intended to co-operate with the cut-out device is connected with this latter by wires, that enter the device through a central aperture of said base-"plate A. One of these wires is connected by means of a third binding-post 4, with the bobbin 8 of a horse-shoe shaped electromagnet t, the armature of which is formed by a one-armed lever a connected at its fulcrum with the other end of said bobbin. The other of the said wires is connected. with the binding-post 6, and thus with one of the line-wires. The other line-wire is connected by the binding post 5, with'a double armed lever 6 connected with the armature a by a rod 2. The neighboring free ends of the armature a and a lever e have contact pieces 0 c normally pressed against each other by a spring 1' acting in the proper sense upon the other end of said lever. The contact pieces 0 0 form the connection between the bindingpost 5 on one side, and, through the mediation of the bobbin 8 and the motor etc., the binding-post 6 on the other side. Therefore, the current passes through the motor etc. so long as the pieces 0 c are in contact with each other. The electromagnet t is, of course, constantly excited, but as long as the strength of the current does not surpass a certain limit, the spring 1" is stronger than the electromagnet. Otherwise, however, the the armature a is attracted by the electromagnet and the lever e is moved by means oil the rod 2, so that the contact-pieces c c are quickly separated from one another and the current is thus broken.

Having now described my invention what I desire to secure by a patent of the United States is:

In. an electric cut-out device, the combination with an electromagnet, an armature forming a one-armed lever, a connectingwire between the fulcrum of said armature and the coil of said electromagnet, a doublearmed lever located about parallelly to said -first lever, opposite to the electromagnet, contact-pieces attached. one to the free end of the first lever and the other to the free end of the neighboring arm of the other lever, a connecting-link between the other arm of the latter and the said first lever, and a connecting-wire secured to the fulcrum of the said double-armed lever, for the purpose as described.

In testimony, that I claim the foregoing as my invention, I have signed my name in presence of two subscribing witnesses.

RUDOLF BREBACII.

Witnesses:

B. H. WARNER, Jr, RUDOLPH FRICKE. 

